Drive train for a motor vehicle and power divider therefor

Abstract

A drive train for a motor vehicle, which has a front axle and a rear axle, of which one is driven constantly and the other is driven as required, with a drive unit which is installed in the motor vehicle transversely at the front and provides drive torque via an output member, the output member being connected to the constantly driven axle, with an angular gear which is arranged in the region of the front axle and is connected to a cardan shaft which serves for transferring drive torque to the rear axle, and with a friction clutch arrangement for cutting in the axle driven as required, wherein the friction clutch arrangement is integrated with the angular gear in the region of the front axle.

1. A drive train for a motor vehicle, which has a front axle and a rear axle, of which the front axle is driven constantly and the rear axle is driven as required, with:
 a drive unit which is installed in the motor vehicle transversely at the front and provides drive torque via an output member, the output member being connected to and coaxial with the constantly driven axle; 
 an angular gear which is arranged in the region of the front axle and is coaxial with the front axle and is connected to a cardan shaft which serves for transferring drive torque to the rear axle; and 
 a friction clutch arrangement for cutting in the axle driven as required; 
 wherein the output member of the drive unit is connected to an input member of a transverse differential gear, the output members of which are connected respectively to a left and a right shaft of the front axle, 
 wherein the friction clutch arrangement is designed as a cut-in clutch for the rear axle, wherein the input member of the transverse differential gear is connected, furthermore, to a hollow-shaft arrangement which is connected to an input member of the cut-in clutch, and wherein an output member of the cut-in clutch is connected to the angular gear wherein the friction clutch arrangement is arranged on a side of the angular gear which lies opposite the side on which the output member of the drive unit is arranged and wherein the friction clutch arrangement is coaxial with the front axle. 
 
     
     
       2. The drive train as claimed in  claim 1 , wherein the cut-in clutch is a lamellar clutch, and wherein the input member of the cut-in clutch is an outer lamellar carrier. 
     
     
       3. The drive train as claimed in  claim 1 , wherein the cut-in clutch is a lamellar clutch, and wherein the output member of the cut-in clutch is an inner lamellar carrier. 
     
     
       4. The drive train as claimed in  claim 1 , wherein the output member of the cut-in clutch is connected to the angular gear via a further hollow-shaft arrangement. 
     
     
       5. The drive train as claimed in  claim 1 , wherein the input member of the transverse differential gear is connected, furthermore, to a hollow-shaft arrangement which is connected to an input member of a transverse blocking clutch, and wherein an output member of the transverse blocking clutch is connected to one of the side shafts of the front axle. 
     
     
       6. The drive train as claimed in  claim 5 , wherein the friction clutch arrangement is designed as a cut-in clutch for the rear axle, wherein the input member of the transverse differential gear is connected, furthermore, to a hollow-shaft arrangement which is connected to an input member of the cut-in clutch, wherein an output member of the cut-in clutch is connected to the angular gear, and wherein the cut-in clutch and the transverse blocking clutch have a common input member.